From the book al-Manaqib of Muhammad bin Ahmad bin Shazaan narrated from Nooh bin Ahmad bin al-Husain, from Ibrahim bin Ahmad bin abi Haseen, from his grand-father, from Yahya bin Abd al-Hameed, from Maisarah bin al-Rabea, from Sulayman al-Aamash, from Jafar bin Muhammad (as), from His father, from Ali bin al-Husain (as) from his Father, from Amir al-Momineen Ali (as) who said:

Prophet Muhammad (saww) said, "O' Ali (as), You are the master of the believers and the leader of the pious. O" Ali (as), You are the chief of the successors and the inheritor of the knowledge of the Prophets and the best of the righteous and the best of preceding ones. O’ Ali (as) You are the husband of the Mistress of the women of the worlds and the successor of the Messengers.

O' Ali (as) You are the master of the believers and the (divine) proof after me over all the people. Paradise is obligatory for the one who loves (befriends) you and deserves to go to Hell the one who has enmity with you. O' Ali, by the One who send me as the Prophet and choose Me over all the creations, If a slave is to worship Allah for 1000 years, Allah (swt) will not accept it from him but due to Your Wilayah (friendship/Love) and the Wilayah of the Imams in your progeny. And Your Wilayah will not be accepted but due to the disassociation with Your enemies and the enemies of the Imams in your progeny. Jibraeel informed Me of this, so whoever wishes can believe in it and whoever wishes can disbelieve in it.

Imam Ali (as) said: "Allah has not made for any man two hearts in his (one) body (33:4). Such that he loves with one heart and hates with one heart. This cannot happen. Our friends have such a pure love with us like purity of gold when put into fire".....

..."Whoever wants to know whether he loves us or not, he should test his heart, if he includes the love of our enemies with our love then he is not with us and we are not with him. And Allah (swt), Jibraeel, Mikaeel are his enemies. And Allah(swt) is the enemies of the Kafir."